The last time Gregory Alan Isakov played London, all he had was a guitar, harmonica, two microphones, and 30 minutes. Five months later, he’s back with a full band. But, although the addition of guitar, banjo, fiddle, drums, and bass makes for a more powerful, visceral experience, the overall effect is far more intimate.

And that’s not just because the singer-songwriter is playing a smaller venue packed with his own fans, he actively goes out of his way to connect with the audience, encouraging them to shout out requests, sharing anecdotes that give insight into his creative process, and clearly having the time of his life with four – sometimes five – friends up on that stage. “This is seriously the best Monday night I’ve ever had”, he grins at one point, and you can’t help but believe him.

It’s almost obligatory for the headliner to thank their support act. But Passenger, clearly impressed by Gregory Alan Isakov, goes a step further. He’s worried about being upstaged by the man he picked to open his run of UK shows.